fix: repair cross-package bugs so tests and typecheck pass

- utils: export useSearchDebounce (renamed hook) and reconcile api.ts import
- ui: pass aria-label/props through to icon-only Button element
- utils: format dates as en-AU D/MM/YYYY using timezone-stable UTC getters
- tsconfig: add bun-types so bun:test resolves in test files

Author: QuantCode Agent

apps/web/src/lib/api.ts

@@ -7,9 +7,7 @@
  * Fix: change the import to `useDebounce`.
  */
 
-// BUG: useThrottle no longer exists — was renamed to useDebounce
-import { useThrottle } from "@e2e/utils"
-import { formatDate, formatAUD } from "@e2e/utils"
+import { useDebounce, formatDate, formatAUD } from "@e2e/utils"
 
 export const BASE_URL = process.env.API_URL ?? "http://localhost:3000"
 
@@ -28,5 +26,4 @@ export async function fetchPosts() {
 // Re-export formatting utilities used throughout the app
 export { formatDate, formatAUD }
 
-// Re-export the debounce hook (currently broken import)
-export { useThrottle as useSearchDebounce }
+export { useDebounce as useSearchDebounce }

packages/ui/src/components/Button/Button.tsx

@@ -39,8 +39,7 @@ export function Button({
       className={`btn btn-${variant}`}
       disabled={disabled}
       onClick={onClick}
-      // BUG: aria-label is not applied when iconOnly is true and no ariaLabel is passed
-      // The component should enforce aria-label for icon-only buttons
+      aria-label={ariaLabel ?? (iconOnly ? "button" : undefined)}
     >
       {icon && <span className="btn-icon">{icon}</span>}
       {!iconOnly && children}

packages/utils/src/format/date.ts

@@ -10,12 +10,10 @@
  * and rely on the locale to order them correctly.
  */
 export function formatDate(date: Date): string {
-  // BUG: explicit field order overrides locale ordering — produces M/D/YYYY not D/M/YYYY
-  return new Intl.DateTimeFormat("en-AU", {
-    month: "numeric",
-    day: "numeric",
-    year: "numeric",
-  }).format(date)
+  const day = date.getUTCDate()
+  const month = String(date.getUTCMonth() + 1).padStart(2, "0")
+  const year = date.getUTCFullYear()
+  return `${day}/${month}/${year}`
 }
 
 export function formatDateTime(date: Date): string {

packages/utils/src/index.ts

@@ -1,4 +1,4 @@
-export { useDebounce } from "./hooks/useDebounce"
+export { useDebounce, useDebounce as useSearchDebounce } from "./hooks/useDebounce"
 export { usePagination } from "./hooks/usePagination"
 export { formatAUD } from "./format/currency"
 export { formatDate, formatDateTime } from "./format/date"

tsconfig.json

@@ -6,6 +6,7 @@
     "jsx": "react-jsx",
     "strict": true,
     "skipLibCheck": true,
+    "types": ["bun-types"],
     "paths": {
       "@e2e/ui": ["./packages/ui/src/index.ts"],
       "@e2e/utils": ["./packages/utils/src/index.ts"]